Fusion cross sections for theBe9+Sn124reaction at energies near the Coulomb barrier

Abstract

The complete and incomplete fusion cross sections for $^{9}\mathrm{Be}+^{124}\mathrm{Sn}$ reaction have been deduced using the online $\ensuremath{\gamma}$-ray measurement technique. Complete fusion at energies above the Coulomb barrier was found to be suppressed by $~28%$ compared to the coupled-channels calculations and is in agreement with the systematics of L. R. Gasques et al. [Phys. Rev. C 79, 034605 (2009)]. Study of the projectile dependence for fusion on a $^{124}\mathrm{Sn}$ target shows that, for $^{9}\mathrm{Be}$ nuclei, the enhancement at below-barrier energies is substantial compared to that of tightly bound nuclei.